ORBEA Denna H50 Gravel: Unleash Your Adventure

Light Weight

£3,499

Carbon forks, Shimano EP600 (85Nm) motor, Shimano Cues 10-speed, 420Wh battery, additional 210Wh range extender, Shimano RS405 hydraulic disc brakes

Colour

Frame Size

Clear

ORBEA Denna H50

The Orbea Denna H50 Gravel isn’t just an e‑bike, it’s a narrative of adventure without boundaries. Crafted for riders who seek freedom from terrain constraints, it merges natural-feeling electric assistance with gravel-specific performance, enabling longer rides, steeper climbs, and rougher surfaces. All without compromising ride comfort or stability.

The range of Denna eGravel bikes offer weights as light as 13kg, give or take for the carbon models and 16kg for the alloy frame version.

Frame & Comfort

Orbea’s light weight aluminium frame maintains lateral stiffness for efficient power transfer and nimble handling. Furthermore, a low bottom bracket, refined chainstays, and a balanced trail tailored to each size deliver stable yet responsive steering, especially on mixed and loose surfaces.

Cleared for up to 50mm tyres, the ORBEA Denna H50 provides extraordinary flexibility to maximise grip and comfort over varied terrain. Experience comfort in all terrains with this unique eBike.

Power and Long Range

Equipped with the Shimano EP600 mid-drive motor, the Orbea Denna H50 Gravel ebike pairs with RS Gen2 RC tuning for gravel conditions. It delivers up to 85 Nm of torque, offering responsive and highly effective assistance. Riders can choose between ‘Gravel’ mode for smoother surfaces and ‘Gravel+’ for looser terrain traction. In addition, further customisation is available via the Shimano e-Tube app.

A compact internal 420Wh battery achieves up to approximately 3,500m of climbing in Eco mode. This offers an impressive energy-to-weight ratio. Also, riders can extend range further with an optional 210Wh Range Extender. It is cleverly disguised as a water bottle that mounts on the frame.

Built-in sensors, compatibility with Garmin devices, and optional Shimano EN600 display let you monitor and customise performance on the fly. These features enhance your time with the ORBEA Denna H50.

Drivetrain & Controls of the Orbea Denna H50 Gravel

A Shimano CUES 10-speed derailleur provides smooth and relatively silent shifting. It couples with a wide range 11–48T cassette that handles steep climbs and flat sprints efficiently. As a result, this ensures crisp, durable shifting. Braking is gradual and highly effective thanks to Shimano RS405 hydraulic disc brakes. These offer confident, well-modulated stopping power across all conditions.

Sporting Vittoria Terreno Dry Gravel G2.0 TLR 700x45c tyres (Graphene compound, tubeless-ready) balance speed, grip, and resilience across mixed terrain.

Experience on the Trails

The Orbea Denna H50 embodies a compelling blend of fearless gravel riding and refined ebike tech. It’s a bike that lets you:

push your limits
with confident power
comfort
and capacity to fit bold journeys on varied terrain.

See our full range of Orbea eBikes HERE.

Motor	Shimano EP600 (85Nm)
Battery	Orbea Internal 420Wh
Rear Derailleur	Shimano Cues U6000 GS Shadow
Cassette	Shimano CS-LG300 11-48t 10-Speed
Frame	Orbea Denna, Thru Axle 12mm x 142mm rear, thread M12xP1, internal cable routing. Aluminium.
Forks	Orbea Denna OMR ICR, full carbon, 1-1/8" – 1,5" tapered head tube compatible, Thru axle 12x100mm, thread M12xP1
Seatpost	SP 0.2 Carbon, 27.2mm, Setback 0
Brakes	Shimano RS405 Hydraulic Disc
Wheel Size	700C
Colour	Blue Stone, Ivory White, Magnetic Bronze
Frame Size	40cm (Extra Small), 44cm (Small), 47cm (Medium), 50cm (Large), 54cm (Extra Large), 57cm (Extra, Extra Large)

All sizing information is a guide only. If you have any questions about bike sizing, our expert team is here to help. Call us on 01905 611774.

How do I measure my height?

With your shoes off, stand upright against a wall, with your shoulders back and legs together. Use a pencil to make a small mark on the wall above your head (make sure you hold the pencil parallel to the floor). Then measure from the floor to your mark, in centimetres or feet and inches.

How do I measure my inside leg length?

With your shoes off, stand upright with your back against a wall. Place a book/ruler between your legs, level with your crotch. Then measure from the floor to the top of the book/ruler, in centimetres or feet and inches (it’s easier if a friend helps).

Q & A

Do all brands of ebike use the same unit of measurement?

No. Most brands show sizing in centimetres, however some use a S/M/L system, and others use inches. The table above includes all of these variations to help you find the right size.

Which size should I go for if I'm in between those listed?

If your measurements suggest that you have a choice of two different sizes, then in the end it’s a personal choice. Here are some rules of thumb to consider: Touring/Trekking ebikes - choose the smaller size. It is possible to make a smaller frame bigger (for example, by raising the saddle or fitting a longer the stem), whereas if the frame itself is too big for you, it’s likely to be less comfortable and won't feel right. eMTBs - choose the larger size. You’ll find an eMTB with a slightly larger frame easier to handle than one that feels cramped. You can always fit a shorter stem if necessary to reduce the reach to the handlebars.

How are ebike frame sizes measured?

An electric bike’s frame size is calculated by measuring the distance from the top of the seat tube (where the seat post inserts), to the centre of the front chainring. Sizing Guide